Download or read book The Efficacy of Maxillary Protraction Protocols with and Without Micro implants written by Kimberley Wu and published by . This book was released on 2012 with total page 47 pages. Available in PDF, EPUB and Kindle. Book excerpt: Objectives: The purpose of this study was to use Finite Element Method (FEM) to simulate various clinical protocols for maxillary protraction with micro-implants, which can provide skeletal changes without the use of surgery. We aim to analyze how location and direction force alters the skeletal effect. Analysis of the skeletal effects can be used to improve clinical protocols for treating class III patients. Methods: A 3-dimensional cranial mesh model with associated maxillary sutures was developed from CT images and Mimics modeling software. Utilizing ANSYS simulation software, protraction forces were applied at different locations and directions to simulate conventional facemask therapy; seven different maxillary protraction protocols utilizing micro-implants. Stress distribution and displacement were analyzed. Video animations and superimpositions were created to illustrate the skeletal effect from varying location and direction of force application. Results: Conventional facemask and facemask from anterior micro-implants at 15° below and 30° above the occlusal plane result in counter-clockwise rotation of the maxillary complex. In contrast, maxillary protraction at 45° below the occlusal plane with anterior or posterior micro-implants displayed clockwise rotation of the maxilla. At 30° below the occlusal plane, Facemask with palatal or anterior micro-implants translated the maxilla downward and forward, while protraction from posterior micro-implants closely resembled pure anterior protraction of the maxilla. Facemask without micro-implants resulted in higher internal stresses, suggesting force dissipation to bone rather than to the sutures. Conclusion: Location of micro-implant placement and direction of pull altered the skeletal response, changing the upward or downward displacement of the maxillary complex, maxillary incisor upward or downward movement, and amount of protraction. Brachyfacial class III patients with a deep bite would benefit from counter-clockwise rotation of the maxilla, resulting in bite opening. Dolicofacial patients with open bite tendency require protraction that minimizes maxillary downward movement. As a result, class III growth modification treatment with micro-implants can be customized for each patient to maximize clinical effectiveness.
Download or read book A Bone Density Based Finite Element Study of the Efficacy of Maxillary Protraction Protocols with and Without Mini implants written by Howard Chu and published by . This book was released on 2015 with total page 41 pages. Available in PDF, EPUB and Kindle. Book excerpt: Objectives: The purpose of this study was to develop a geometrically accurate and adaptable finite element head model for orthodontic and orthopedic simulations. This finite element head model will use a grayscale conversion and image-based meshing method to apply anatomically accurate bone densities of the human skull and craniofacial sutures. The model can then be used to simulate different clinical maxillary protraction protocols using a conventional facemask appliance and a mico-implant assisted rapid palatal expander (MARPE). Our goal was to improve upon the existing finite element model and to analyze how a bone and suture density based human skull model can improve the analysis of the skeletal effects of these two clinical treatment protocols. Methods: A 3-dimensional cranial mesh model with associated circummaxillary sutures was developed from CT images and Simpleware modeling software. Using a novel image-based meshing approach rather than the conventional computer-aided design (CAD) approach, the different regions of interests such as bone and sutures are separated into different masks. These masked are defined based on the image grayscale within the region of interest. Mesh generation was completed using a multi-part Extended Volumetric Marching Cubes (EVOMAC) approach where voxels are converted directly into finite elements. The material properties of the craniofacial bone and sutures were extracted from the underlying grayscale intensity Hounsfield (HU) of the CT image. Utilizing ANSYS simulation software, two different maxillary protraction protocols including conventional facemask therapy and micro-implant assisted rapid palatal expander (MARPE) were simulated. The stress distribution and displacement of these two different protraction protocols were analyzed. Superimpositions and video animations were generated to visualize the skeletal effects and to compare the results from the newly generated image-based finite element mesh model with the previous CAD-based mesh model generated from the Mimics software. Results: Both the newly designed image-based finite element mesh model and the previous CAD-based mesh model produced similar results in regards to direction of maxillary protraction: Conventional facemask results in counter-clockwise rotation of the maxillary complex. In contrast, facemask with the use of micro-implant assisted rapid palatal expander (MARPE) produces translation of the maxilla in a downward and forward direction. However, the newly designed image-based finite element mesh model produced less magnitudes of movement and less mesh deformation. Conclusion: The newly generated image-based finite element mesh model produced more clinically accurate results compared to the previous CAD-based mesh model. While the direction of the maxillary movement for the two different protocols is the same for both models, the geometrically accurate bone and suture density based model produced less mesh deformation and more accurately represents actual clinical outcomes. Further maxillary protraction protocols can be tested with this newly developed finite element mesh model.
Download or read book Orthodontics E Book written by Lee W. Graber and published by Elsevier Health Sciences. This book was released on 2022-08-26 with total page 1348 pages. Available in PDF, EPUB and Kindle. Book excerpt: **Selected for Doody's Core Titles® 2024 in Dentistry** Comprehensive, cutting-edge content addresses contemporary orthodontic practice! Orthodontics: Current Principles and Techniques, 7th Edition provides an evidence-based approach to orthodontic diagnosis, treatment planning, and clinical techniques, including esthetics, genetics, temporary anchorage devices, aligners, technology-assisted biomechanics, and much more. New to this edition are seven chapters, covering topics like AI, maxillary expansion in adults, Class II correctors, and autotransplantation. Newly authored chapters on orthognathic surgery and the craniofacial team, the periodontal-orthodontic interface, interdisciplinary treatment, and accelerated tooth movement, among others, address current perspectives. The 7th edition comes with access to an enhanced eBook version, which includes videos and additional visuals to show concepts difficult to explain with words alone. Readers can also find additional, online-only chapters and a fully searchable version of the text. Respected editors Lee Graber, Katherine Vig, and Greg Huang are joined by new editor Pádhraig Fleming, along with expert contributors from around the world. This text provides the most current and comprehensive collection of orthodontic knowledge, making it the go-to book for orthodontic residents and practitioners! - Comprehensive coverage provides a one-stop resource for the field of orthodontics, including foundational theory and the latest on the materials and techniques used in today's practice. - Experienced, renowned editors lead a team of expert, international contributors to provide the most authoritative clinical practice and supporting science from the best and brightest in the industry. - More than 3,400 images include a mixture of radiographs, full-color clinical photos, and anatomic or schematic line drawings, showing examples of treatment, techniques, and outcomes. - Detailed, illustrated case studies show the decision-making process, highlighting the consequences of various treatment techniques over time. - Extensive references make it easy to look up the latest in orthodontic research and evidence-based information, and all references also appear online. - Enhanced ebook, included with every print purchase, features a fully searchable version of the text and bonus online-only chapters, instructional videos, and more. - NEW! Seven chapters cover topics such as AI, maxillary expansion in adults, Class II correctors, and autotransplantation. Newly authored chapters on aligners, orthognathic surgery, the periodontal-orthodontic interface, interdisciplinary and computer-assisted treatment, temporary anchorage devices, and accelerated tooth movement, among others, address current perspectives. - UPDATED! Relevant literature and evidence-based practices are featured throughout the text. - NEW! Additional photos and illustrations visually reinforce key concepts and procedures.
Download or read book Temporary Anchorage Devices in Clinical Orthodontics written by Jae Hyun Park and published by John Wiley & Sons. This book was released on 2020-02-25 with total page 808 pages. Available in PDF, EPUB and Kindle. Book excerpt: Provides the latest information on all aspects of using temporary anchorage devices in clinical orthodontics, from diagnosis and treatment planning to appliances and applications Written by some of the world’s leading experts in orthodontics, Temporary Anchorage Devices in Clinical Orthodontics is a comprehensive, up-to-date reference that covers all aspects of temporary anchorage device (TAD) use in contemporary orthodontics. Taking a real-world approach to the subject, it covers topics ranging from diagnosis and treatment planning to the many applications and management of complications. Case studies demonstrate the concepts, and high-quality clinical photographs support the text throughout. The book begins with an overview of clinical applications and fundamental principles of TADs. It then goes on to cover biomechanical considerations for controlling target tooth movement with TADs. Biomechanical simulations for various clinical scenarios treated with TADs are addressed next, followed by an examination of histological aspects during the healing process and anatomical considerations with TADs. Other chapters cover: Class II Correction with TADs, Distalization with TADs, TAD-anchored Maxillary Protraction, Maxillary Expansion with TADs, Anterior Open Bite Correction with TADs, TAD-assisted Aligner Therapy, TADs vs. Orthognathic Surgery; Legal Considerations When Using TADs; and much more. Provides evidence-based information on the use of TADs, with a focus on improving outcomes for patients Considers topics ranging from diagnosis and treatment planning to specific clinical applications and appliances Takes a real-world clinical approach, with case studies demonstrating concepts Written by international experts in the field Presents hundreds of high-quality clinical photographs to support the text Temporary Anchorage Devices in Clinical Orthodontics is an essential resource for orthodontists and orthodontic residents.
Download or read book Comparison of Two Protocols for Maxillary Protraction written by Nicole M. Deshon and published by . This book was released on 2014 with total page 77 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Efficacy of Rapid Palatal Expansion with and Without Protraction Headgear written by Suzanne M. Dennis and published by . This book was released on 1998 with total page 96 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Applications of Orthodontic Mini Implants written by Jong Suk Lee and published by . This book was released on 2007 with total page 314 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Temporary Anchorage Devices in Clinical Orthodontics written by Jae Hyun Park and published by John Wiley & Sons. This book was released on 2020-04-21 with total page 816 pages. Available in PDF, EPUB and Kindle. Book excerpt: Provides the latest information on all aspects of using temporary anchorage devices in clinical orthodontics, from diagnosis and treatment planning to appliances and applications Written by some of the world’s leading experts in orthodontics, Temporary Anchorage Devices in Clinical Orthodontics is a comprehensive, up-to-date reference that covers all aspects of temporary anchorage device (TAD) use in contemporary orthodontics. Taking a real-world approach to the subject, it covers topics ranging from diagnosis and treatment planning to the many applications and management of complications. Case studies demonstrate the concepts, and high-quality clinical photographs support the text throughout. The book begins with an overview of clinical applications and fundamental principles of TADs. It then goes on to cover biomechanical considerations for controlling target tooth movement with TADs. Biomechanical simulations for various clinical scenarios treated with TADs are addressed next, followed by an examination of histological aspects during the healing process and anatomical considerations with TADs. Other chapters cover: Class II Correction with TADs, Distalization with TADs, TAD-anchored Maxillary Protraction, Maxillary Expansion with TADs, Anterior Open Bite Correction with TADs, TAD-assisted Aligner Therapy, TADs vs. Orthognathic Surgery; Legal Considerations When Using TADs; and much more. Provides evidence-based information on the use of TADs, with a focus on improving outcomes for patients Considers topics ranging from diagnosis and treatment planning to specific clinical applications and appliances Takes a real-world clinical approach, with case studies demonstrating concepts Written by international experts in the field Presents hundreds of high-quality clinical photographs to support the text Temporary Anchorage Devices in Clinical Orthodontics is an essential resource for orthodontists and orthodontic residents.
Download or read book Orthodontic Treatment of Class III Malocclusion written by Peter W. Ngan and published by Bentham Science Publishers. This book was released on 2014-07-16 with total page 474 pages. Available in PDF, EPUB and Kindle. Book excerpt: "Orthodontic Treatment of Class III Malocclusion is a clinical textbook which highlights both research findings as well as clinical treatment of patients with Class III malocclusions. The volume equips readers with a critical review of present information about 1) the craniofacial biology behind various treatment strategies, 2) Diagnosis and treatment planning in both growing and non-growing Class III patients and 3) Contemporary orthodontic appliances using implants and miniscrews. The book is divided into sections proving evidence-based research on the following aspects of Class III malocclusions: the genetic and epigenetic factors contemporary diagnosis and treatment planning for patients early treatment of Class III problems treatment of Class III problems in the adolescents surgical treatment of adult Class III patients treatment of Class III problems in patients with craniofacial anomalies Orthodontic Treatment of Class III Malocclusion will empower clinicians with a sound knowledge about rationale for using certain treatment modalities and will help both general practitioners and specialists such as pediatric dentists and orthodontists to use this information for their daily practice."
Download or read book Rapid Maxillary Expansion written by Donald J. Timms and published by . This book was released on 1981 with total page 152 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Herbst Appliance written by Hans Pancherz and published by Quintessence Publishing (IL). This book was released on 2008 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: This is a research-based book on the clinical use of the Herbst appliance in the management of Class 2 malocclusions. Different clinical problems and questions are addressed in the light of the corresponding research existing. Thus, in contrast to other Class 2 alternative treatments, the Herbst appliance approach is based on scientific research.
Download or read book Advances in Oral and Maxillofacial Surgery written by Jose M Marchena and published by Elsevier Health Sciences. This book was released on 2019-10-05 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: This issue of Oral and Maxillofacial Surgery Clinics of North America is devoted to Advances in Oral and Maxillofacial Surgery and is edited by Drs. Jose M. Marchena, Jonathan Shum and Jonathon S. Jundt. Articles will include: Virtual Surgical Planning for Maxillofacial Surgery; Surgical Navigation for Oral and Maxillofacial Surgery; Real Time Adjuncts for Dental Implant Placement; New Technologies for Tissue Cutting; Minimally Invasive Maxillofacial Surgery; Conservative Approaches to Benign Pathology; Tissue Engineering; Patient-Specific Implants; Practice Management in Oral and Maxillofacial Surgery; Advances in Anesthesia Monitoring; Advances in Surgical Training: Simulation; Advances in Functioning Imaging; and more!
Download or read book Orthodontics Diagnosis and Management of Malocclusion and Dentofacial Deformities E Book written by Om Prakash Kharbanda and published by Elsevier Health Sciences. This book was released on 2019-11-14 with total page 1022 pages. Available in PDF, EPUB and Kindle. Book excerpt: The second edition is expanded and rejuvenated with a greater focus on PG students, orthodontic educators, UG students and practitioners. The book covers entire panorama of science and clinical practice of orthodontics, from basics to clinical, presented in 58 chapters organised in 15 sections. The information is provided in-depth, literature supported, complimented with real life scenarios and case reports. A special effort has been made to include structured information on subjects of relevance which are much talked about but found only in journals. Contains a balanced blend of texts, graphics, boxes and clinical case reports encountered in clinical practice A comprehensive coverage of cephalometric radiology, ethnic norms and advances in three-dimensional imaging A detailed step by step approach to orthodontic treatment with contemporary fixed appliances, from diagnosis to finishing Provides an up-to-date information on topics of day-to-day relevance such as epidemiology of malocclusion and orthodontic indices, psychological aspects of orthodontics, debonding, care and maintenance of occlusion after orthodontic treatment Presents updated information on temporary anchorage devices (TAD), impacted and transposed teeth, inter-disciplinary treatment, management of cleft lip and palate and orthognathic surgery Emerging fields such as surgically facilitated rapid tooth movement, distraction osteogenesis and obstructive sleep apnoea (OSA) are included with up-to-date clinically relevant information Includes Companion Website containing procedural videos
Download or read book Assessment of the Magnitude and Asymmetry of Micro Implant Assisted Rapid Maxillary Expansion written by Islam Elkenawy and published by . This book was released on 2020 with total page 50 pages. Available in PDF, EPUB and Kindle. Book excerpt: Micro-implant assisted rapid palatal expander such as the Maxillary Skeletal Expander (MSE) have been utilized to achieve skeletal expansion as an alternative to surgically assisted expansion with some success. Previous studies show significant effects on the mid-face, including a degree of asymmetry. The aim of this study is to quantify the magnitude, parallelism, and asymmetry of expansion in non-growing patients and to explore possible factors that can predict the pattern of asymmetry of expansion. We examined orthodontic non-growing patients (n=31) with an average age of 20.4 years old, with Cone Beam Computed Tomography (CBCT) images taken before and right after expansion using MSE. Those images were superimposed, and expansion was analyzed utilizing the Mid-Sagittal Plane (MSP) as a reference plane. Average magnitude of total expansion was 5 mm at the Anterior Nasal Spine (ANS), and 4.77 mm at the Posterior Nasal Spine (PNS) which showed statistical significance using a paired t-test with p
Download or read book Mini implants in Orthodontics written by Björn Ludwig and published by . This book was released on 2008 with total page 188 pages. Available in PDF, EPUB and Kindle. Book excerpt: This textbook was designed to be a practical and theoretical vade mecum for the clinical use of orthodontic implants. Relevant information on mini-screw selection and insertion in various clinical situations is presented in a clear, readily-accessible format. By way of clinical examples, solutions to specific orthodontic problems are presented as standardized concepts that can easily be incorporated into everyday practice. Illustration of the required procedures, indications and contraindications, potential risks, clinical problem solving, and advice on establishing routine protocols in daily practice, complete this comprehensive volume. The editors have years of clinical experience. They have forged an international reputation that has enabled them to identify and recruit a panel of collaborators whose expertise complements their own. For those who want to do more than just end up wherever the appliance of the day happens to leave them, this book is a revelation.
Download or read book Orthodontics in the Vertical Dimension written by Thomas E. Southard and published by John Wiley & Sons. This book was released on 2015-05-11 with total page 544 pages. Available in PDF, EPUB and Kindle. Book excerpt: This case-based clinical text is an exhaustive review of orthodontic problems in the vertical dimension, with evidence-based guidelines for successful diagnosis and treatment. A total of 21 cases address dental deep bites, skeletal deep bites, dental open bites, skeletal open bites, and posterior open bites. Each case includes pretreatment, interim, and posttreatment orthodontic records, as well as references to provide a solid evidence base for decision making. Written with a clinical focus, Orthodontics in the Vertical Dimension is ideal for the practicing orthodontist and makes an excellent resource for residents in pursuit of board certification. Key Features • Detailed case-based scenarios for treatment of the spectrum of open bites and deep bites • Cases presented in question and answer format to encourage thought • 2500 clinical photographs and illustrations. “This is a great textbook, and I will use it in my classes. Highly organized and elaborately illustrated, the authors’ work is inspired by problem-based learning and stimulates cognitive processes by encouraging critical thinking. Their text deserves a ‘must read’ category for orthodontic professionals of all ages.” Dr. Jeryl D. English DDS, MS, Chairman and Graduate Program Director, Department of Orthodontics, The University of Texas Health Science Center at Houston “A terrific book for students of orthodontics and dentofacial orthopedics, covering the vertical dimension and much more. A wide range of cases are presented, treatment plans are realistic, and the authors openly discuss complications encountered during treatment.” Dr. Greg J. Huang, DMD, MSD, MPH Professor and Chair Department of Orthodontics, The University of Washington School of Dentistry “This comprehensive text prepares the reader in the context of a mini-residency with a question answer teaching style. Resident and experienced orthodontists can match their cases with fully worked up patients and alternative treatment options. Well written.” Dr. Katherine L. Vig, BDS, MS, FDS, D.Orth Professor Emeritus and Former Head of Orthodontics, The Ohio State University College of Dentistry
Download or read book Esthetics and Biomechanics in Orthodontics written by Ravindra Nanda and published by Elsevier Health Sciences. This book was released on 2014-03-01 with total page 631 pages. Available in PDF, EPUB and Kindle. Book excerpt: Esthetics and Biomechanics in Orthodontics, 2nd Edition provides everything you need to know to successfully apply biomechanics in clinical orthodontics. This edition features new content in the areas of tooth movement, treating Class III malocclusions, skeletal anchorage, Surgery First treatment plans, and space closure. In addition to comprehensive guidance on basic biomechanic principles, this state-of-the-art reference also shows how all techniques can apply biomechanical principles to improve the force delivery, understand and prevent side effects, and achieve predictable results. - Highly regarded lead author, Dr. Ravindra Nanda, is a widely known and respected educator in the field of orthodontics. - Comprehensive coverage of diagnosis, treatment planning, and esthetics in tooth display provides a solid foundation in orthodontia and biomechanic problem solving. - Case reports include high-quality photographs, radiographs, and illustrations to better show biomechanical principles. - Radiographs and line drawings accompany clinical photographs to help illustrate the various stages of treatment. - NEW! Content on the fundamentals that guide orthodontic tooth movement offers a clear understanding of how orthodontic appliances work and their role in designing treatment methodologies. - NEW! Content on procedures and indications for optimal space closure helps you define priorities in treatment planning and understand all the treatment alternatives. - NEW! Detailed information on biomechanics-based management of impacted canines provides treatment planning strategies and biomechanic techniques to achieve desired results without increasing treatment time. - NEW! Coverage on modalities for the treatment of Class III malocclusions offers insight into new treatment protocols — such as corticotomy-assisted facemask therapy and corticotomy-assisted maxillary protraction — that are available to effectively treat these occurrences. - NEW! Detailed information on the different forms of skeletal anchorage (including mini-implant technology) shows how certain challenges associated with types of tooth movement can now be overcome by applying sound biomechanical principles to skeletal anchorage. - NEW! In-depth coverage of the Surgery First (SF) treatment plan offers step-by-step examples to help explain the technique of Sendai SF and its benefits
